Jenson Button's helmet features a tribute to Porsche racer Sean Edwards, who died in a car crash two weeks ago.

Medical and Safety cars ready in the FIA garage.

Sebastian Vettel completely dominated on track proceedings on Friday.

Force India mechanics practice pit stops.

Mercedes AMG F1 W04 steering wheel in detail.

Jenson Button lays rubber in his pitbox during practice.

Force India drivers Adrian Sutil and Paul Di Resta in the paddock.

Alonso's helmet features his record of being F1's highest points' scorer of all times.

Sahara Force India team principal Vijay Mallya on the pitwall.

Sebastian Vettel in the Red Bull garage during practice.

Vijay Mallya and Sauber F1 team principal Monisha Kaltenborn in the FIA press conference.

Marshals look on as a Force India VJM06 passes by.

Red Bull RB9 in the garage.

Lewis Hamilton shows his brother Nicolas Hamilton around the Mercedes F1 garage.